OG #18
aka OG 18, Private Reserve, Private Reserve OG, Reserve OG, OG#18, OG Kush #18
OG #18, also known as Private Reserve, is an award-winning indica-dominant hybrid (70/30) from DNA Genetics that delivers powerful relaxation with surprising mental clarity. With THC levels reaching 16-26%, this strain combines euphoric cerebral effects with deep body sedation, wrapped in pungent diesel, pine, and sour citrus aromas. Multiple Cannabis Cup victories highlight its exceptional quality, while its limonene-rich terpene profile provides mood elevation alongside the indica's soothing embrace, making it ideal for evening stress relief and sleep support.
Quick Hits
These are approximate averages from community data. Your actual product's THC/CBD varies by batch, grower, and growing conditions.
Scan your label for exact values →Classification based on genetic lineage. Note: Recent research shows indica/sativa labels don't predict effects—terpene profiles do.
The dominant aromatic compound shaping this strain's effects and flavor profile. Terpenes work with cannabinoids to create your unique experience.
Recommendation based on typical effects. Morning strains tend to energize; evening strains tend to relax. Your experience may vary.
When this strain was first cultivated or its genetic origin decade. Heritage strains often have more stable, established genetics.
Market availability based on dispensary listings and community data. Rare strains may require searching specialty dispensaries.
Strain Highlights
Key insights at a glance
Professor High Says...
In-depth strain breakdown from our cannabis expert
Settling into the couch after exhaling that diesel-pine cloud... okay, so the first thing hitting me is this unexpected wave of mental brightness—my thoughts feel crisp and elevated, almost effervescent, which is fascinating for such an indica-heavy strain. The limonene is definitely doing its work here, creating this luminous headspace that feels simultaneously focused and euphoric. But here's where it gets interesting: about fifteen minutes in, this warm, tingling sensation starts cascading down from my shoulders, spreading like honey through my muscles. It's not just relaxation—it's this profound unwinding at the cellular level, like every fiber is releasing tension I didn't know I was holding. The duality is remarkable: my mind stays alert enough to appreciate what's happening, tracking the sensory experience with scientific curiosity, even as my body melts deeper into complete physical tranquility. The sour citrus notes seem to mirror the mental effects—sharp and attention-grabbing—while the earthy kush undertones match the body sedation perfectly. There's this tingly, almost electric quality dancing across my skin that keeps the experience from becoming too heavy or couch-lock dominant. By the thirty-minute mark, though, the indica genetics assert themselves more fully, and I find myself contentedly immobilized, thoughts slowing to a peaceful drift. The euphoria persists but transforms into something deeper—a quiet contentment rather than active happiness. This is the kind of high that makes you understand why OG genetics earned their legendary status: complex, layered, evolving, and ultimately... profoundly satisfying.
Effects Profile
Best enjoyed during evening
Wind down and relax
Best For
Effect Sources
- 1OG #18 - Compare The Straincomparethestrain.ca
- 2The OG 18 (DNA Genetics) feminizedzamnesia.com
- 3OG #18 Seedspacificseedbank.com
- 4OG #18 VS OG Kushcomparethestrain.ca
- 5The OG #18 (Reserva Privada) :: Cannabis Strain Infoen.seedfinder.eu
- 6OG #18 Strain - Hybrid with Sedative Effectswayofleaf.com
- 7OG #18 Weed Strain Information & Effectssativauniversity.com
- 8OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 9OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 10OG #18 Strainilovegrowingmarijuana.com
- 11OG #18 - Weed Strainsleafly.com
- 12The OG #18 (Reserva Privada) :: Cannabis Strain Infoseedfinder.eu
- 13The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 14OG #18 Weed Strain Effects & Reviews | Leaflyleafly.ca
- 15OG #18 Weed Strain Effects & Reviews | Leaflyleafly.com
- 16The OG #18 Private Reserve OGaskgrowers.com
- 17The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 18OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 19OG 18 Marijuana Strain Information & Reviewsallbud.com
- 20OG #18nuggmd.com
20 verified sources
Side Effects
Side effects vary by individual. Start low, go slow. Consult a healthcare professional with concerns.
These are commonly reported effects. Individual experiences may vary based on dosage, tolerance, and consumption method.
Aroma & Flavors
Aroma & Flavor Sources
- 1OG #18 - Compare The Straincomparethestrain.ca
- 2The OG 18 (DNA Genetics) feminizedzamnesia.com
- 3OG #18 Seedspacificseedbank.com
- 4OG #18 VS OG Kushcomparethestrain.ca
- 5OG #18 Strain - Hybrid with Sedative Effectswayofleaf.com
- 6OG #18 Weed Strain Information & Effectssativauniversity.com
- 7OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 8OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 9OG #18 Strainilovegrowingmarijuana.com
- 10OG #18 - Weed Strainsleafly.com
- 11The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 12OG #18 Weed Strain Effects & Reviews | Leaflyleafly.ca
- 13OG #18 Weed Strain Effects & Reviews | Leaflyleafly.com
- 14The OG #18 Private Reserve OGaskgrowers.com
- 15The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 16OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 17OG 18 Marijuana Strain Information & Reviewsallbud.com
- 18OG #18nuggmd.com
18 verified sources
Aromas
Flavors
Appearance
Color Palette
Texture
Dense, compact indica-dominant bud structure with heavy resin production and tight node spacing. The flowers feel sticky and resinous to the touch, with a firm, chunky texture that breaks apart to reveal frosted interior layers thick with trichome coverage.
Crystal Density
very high
Exceptional crystal coverage
Terpene Profile
Partially VerifiedTerpene Sources
- 1OG #18 Seedspacificseedbank.com
- 2OG #18 Weed Strain Information & Effectssativauniversity.com
- 3OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 4OG #18 Strainilovegrowingmarijuana.com
- 5OG #18 - Weed Strainsleafly.com
- 6The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 7The OG #18 Private Reserve OGaskgrowers.com
- 8OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 9OG #18nuggmd.com
9 verified sources
Terpene Distribution
LimoneneDominant
Flavor: Citrus, lemon, orange
Full Profile
Limonene
0.69 %
Flavor Profile:
Citrus, lemon, orange
Effects:
Caryophyllene
0.5 %
Flavor Profile:
Spicy, peppery, woody
Effects:
Beta Myrcene
0.29 %
Linalool
0.25 %
Flavor Profile:
Floral, lavender, sweet
Effects:
Myrcene
0.2 %
Flavor Profile:
Earthy, musky, fruity
Effects:
Alpha Pinene
0.13 %
Beta Caryophyllene
0.08 %
Alpha Humulene
0.03 %
Terpinolene
0.02 %
Flavor Profile:
Fresh, piney, floral, citrus
Effects:
Cannabinoid Profile
Both THC and CBD present (5-15% each) - Medical/wellness focused
Medical Effects
Medical Effect Sources
- 1OG #18 - Compare The Straincomparethestrain.ca
- 2OG #18 Seedspacificseedbank.com
- 3OG #18 VS OG Kushcomparethestrain.ca
- 4OG #18 Strain - Hybrid with Sedative Effectswayofleaf.com
- 5OG #18 Weed Strain Information & Effectssativauniversity.com
- 6OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 7OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 8OG #18 Strainilovegrowingmarijuana.com
- 9OG #18 - Weed Strainsleafly.com
- 10OG #18 Weed Strain Effects & Reviews | Leaflyleafly.ca
- 11OG #18 Weed Strain Effects & Reviews | Leaflyleafly.com
- 12The OG #18 Private Reserve OGaskgrowers.com
- 13The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 14OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 15OG 18 Marijuana Strain Information & Reviewsallbud.com
- 16OG #18nuggmd.com
16 verified sources
Mental Effects
- •Stress Relief
Reduces stress and anxious thoughts effectively
- •Anxiety Management
Alleviates anxiety without excessive sedation
- •Mood Enhancement
Elevates mood and promotes positive outlook
- •Depression Support
Helps manage depressive symptoms and negativity
Professor High visualization
Body Effects
- •Pain Management
Reduces chronic pain and muscle tension
- •Sleep Support
Promotes deep sleep and treats insomnia
- •Inflammation Reduction
Decreases inflammation and muscle spasms
- •Appetite Stimulation
Increases appetite and reduces nausea
Medical Disclaimer: This information is AI-generated based on available research and user reports, provided for educational purposes only, and is not intended as medical advice. Cannabis affects everyone differently. Consult with a qualified healthcare professional before using cannabis for medical purposes. Do not use cannabis if pregnant, nursing, or have a medical condition without consulting your doctor.
Lineage History
Lineage Sources
- 1OG #18 - Compare The Straincomparethestrain.ca
- 2The OG 18 (DNA Genetics) feminizedzamnesia.com
- 3OG #18 Seedspacificseedbank.com
- 4OG #18 VS OG Kushcomparethestrain.ca
- 5The OG #18 (Reserva Privada) :: Cannabis Strain Infoen.seedfinder.eu
- 6OG #18 Strain - Hybrid with Sedative Effectswayofleaf.com
- 7OG #18 Weed Strain Information & Effectssativauniversity.com
- 8OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 9OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 10OG #18 Strainilovegrowingmarijuana.com
- 11OG #18 - Weed Strainsleafly.com
- 12The OG #18 (Reserva Privada) :: Cannabis Strain Infoseedfinder.eu
- 13The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 14OG #18 Weed Strain Effects & Reviews | Leaflyleafly.ca
- 15OG #18 Weed Strain Effects & Reviews | Leaflyleafly.com
- 16The OG #18 Private Reserve OGaskgrowers.com
- 17The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 18OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 19OG #18nuggmd.com
19 verified sources
OG #18 is a hybrid strain primarily descended from OG Kush with various lineage reports including Afghani, Hindu Kush, and Lemon Thai genetics. Some sources indicate it originated in the 2000s.
Origin Timeline
First cultivated in 2007
Breeder
DNA Genetics, Reserva Privada
Seed Bank
Reserva Privada
Consumption Methods
Recommended Methods
Awards & Recognition
Award Sources
- 1The OG 18 (DNA Genetics) feminizedzamnesia.com
- 2The OG #18 (Reserva Privada) :: Cannabis Strain Infoen.seedfinder.eu
- 3OG #18 Weed Strain Information & Effectssativauniversity.com
- 4OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 5OG #18 Strainilovegrowingmarijuana.com
- 6OG #18 - Weed Strainsleafly.com
- 7The OG #18 (Reserva Privada) :: Cannabis Strain Infoseedfinder.eu
- 8The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 9The OG #18 Private Reserve OGaskgrowers.com
- 10The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 11OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 12OG #18nuggmd.com
12 verified sources
Competition Wins
Detailed Description
The OG #18 Legacy
OG #18, also known as Private Reserve or Reserve OG, stands as a testament to cannabis breeding excellence and award-winning genetics. This indica-dominant hybrid (70% indica/30% sativa) represents one of the most decorated strains from the legendary DNA Genetics and Reserva Privada breeding programs. Born in the mid-2000s and achieving widespread recognition by 2007, OG #18 has captured multiple High Times Cannabis Cup awards (2007, 2009, 2010) along with victories at the European Champions Cup and Spannabis Cannabis Champions Cup, cementing its status as a world-class cultivar that continues to captivate cannabis enthusiasts worldwide.
🧬 Genetic Heritage & Lineage
OG #18's genetic foundation rests primarily on the iconic OG Kush, one of cannabis culture's most revered parent strains. While the exact lineage contains some mystery—a hallmark of many legendary OG varieties—various reports indicate contributions from Afghani, Hindu Kush, and Lemon Thai genetics. This complex genetic tapestry creates a strain that honors its Kush heritage while introducing unique characteristics that distinguish it from its parent. Bred by the renowned teams at DNA Genetics and Reserva Privada in the 2000s, OG #18 emerged during the golden era of California cannabis breeding, when skilled cultivators were perfecting the OG Kush lineage into numerous award-winning phenotypes.
👃 Terpene Profile & Aromatics
The aromatic experience of OG #18 showcases a sophisticated terpene profile dominated by limonene (0.69%), which provides uplifting citrus notes and mood-enhancing properties. Supporting terpenes include beta-myrcene (0.29%), contributing sedating body effects and musky undertones, linalool (0.25%), adding calming floral lavender hints, alpha-pinene (0.13%), delivering sharp pine clarity, and beta-caryophyllene (0.08%), offering spicy pepper notes with anti-inflammatory potential. With a total terpene content around 2.19%, you'll encounter a pungent, diesel-forward aroma that immediately announces its OG heritage. The scent profile layers sour fuel notes with sweet pine, earthy kush, and subtle citrus accents, creating an olfactory experience that's both aggressive and refined. Some phenotypes reveal skunky undertones with hints of spice and musk, while the citrus notes provide brightness that cuts through the heavier diesel base.
👅 Flavor Experience
When you inhale OG #18, the initial flavor hits with bold diesel fuel characteristics mixed with sweet pine that coats your palate. Mid-palate, you'll notice the earthy, woody kush flavors developing, accompanied by sour citrus notes that add complexity and tang. The spicy pepper undertones from caryophyllene create a subtle burn, while sweeter notes balance the intensity. On the exhale, the flavor transforms into a pungent, hashy finish with lingering diesel and sour citrus that remains on your tongue long after consumption. Some users report subtle fruity or citrus sweetness that emerges, particularly when vaporized at lower temperatures, revealing the strain's nuanced flavor layers.
🎯 Effects & Experience
OG #18 delivers a powerful experience that begins within minutes of consumption, offering THC levels ranging from 16-26% (typically around 20-22%). You'll first notice a euphoric cerebral rush that elevates mood and brings a sense of happiness and contentment. This initial uplifting phase quickly transitions into deep physical relaxation that spreads throughout your body, melting tension and stress. The indica dominance becomes apparent as the effects peak, delivering strong body sedation accompanied by a tingly sensation and profound calmness. Despite the heavy body effects, OG #18 maintains mental clarity better than many indica-dominant strains, allowing for focused thoughts and even creative inspiration before the sedation fully takes hold. The experience lasts 2-4 hours, with effects intensifying over the first 30-60 minutes before gradually tapering into sleepiness that makes this strain ideal for evening use. You may experience increased appetite and a pleasant sense of being uplifted even as relaxation deepens.
💚 Medical & Therapeutic Potential
OG #18's balanced cannabinoid and terpene profile may help address numerous wellness concerns. The strain's stress-relieving properties are particularly notable, with the limonene and linalool combination potentially reducing anxious thoughts and promoting emotional balance. For pain management, the myrcene and caryophyllene content may provide significant relief from chronic pain, muscle tension, inflammation, and headaches. The strain's sedating qualities make it a popular choice for those seeking sleep support, as it may help quiet racing thoughts and encourage deep, restorative rest. Additionally, users report that OG #18 may help manage symptoms of depression through its mood-enhancing euphoria, while its appetite-stimulating properties could benefit those dealing with nausea or lack of appetite. The strain's effects on anxiety are dose-dependent—lower amounts may provide relief, while higher doses might increase anxious feelings in sensitive individuals.
👁️ Visual Characteristics
OG #18 produces visually stunning buds characterized by dense, compact structure typical of indica-dominant genetics. You'll observe deep forest green coloring as the primary hue, often accented with purple undertones and olive green shading throughout the buds. The flowers feature vibrant orange to rust-colored pistils that curl and twist throughout the bud structure, creating striking contrast against the darker green base. What truly sets OG #18 apart is its heavy trichome coverage—the buds glisten with crystalline resin glands that give them a frosted, sugar-coated appearance, reflecting the strain's potency. The trichomes often display amber to milky white coloring when fully mature, creating a shimmering effect under proper lighting.
🏆 Awards & Recognition
OG #18's trophy case speaks volumes about its quality and consistency. The strain captured 3rd Place Indica at the 2007 High Times Cannabis Cup, followed by 2nd Place Indica in 2009, and continued its winning streak at multiple international competitions including the 2010 High Times Cannabis Cup and European Champions Cup. Perhaps most impressively, OG #18 took 1st Place at the 2011 Spannabis Cannabis Champions Cup in the Hydro category and the Spannabis Indoor Hydro Cup 2010, demonstrating excellence in both cultivation methods and consumer appeal.
📜 Cultural Context & Consumer Considerations
As one of the numbered OG Kush phenotypes, OG #18 holds special significance in cannabis culture, representing the era when California breeders were methodically selecting and stabilizing the best OG genetics. The "#18" designation indicates this was the 18th phenotype isolated by Reserva Privada, and its multiple awards prove they chose wisely. Today, OG #18 remains readily available through various seed banks and dispensaries, maintaining popularity among both recreational users seeking potent relaxation and medical patients requiring strong therapeutic effects. Start low, go slow with this strain—its high THC content and heavy effects can overwhelm novice users. Experienced consumers will appreciate the complex effects profile that balances euphoria with sedation, making it versatile for various evening activities before ultimately guiding you toward restful sleep.
Research Methodology
How we compiled this strain profile
This strain profile was generated by analyzing 25 independent sources mentioning 'OG #18'. Our research pipeline cross-references multiple databases, lab results, and community reports to synthesize accurate strain data.
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Strain Highlights
Key insights at a glance
Lineage History
Lineage Sources
- 1OG #18 - Compare The Straincomparethestrain.ca
- 2The OG 18 (DNA Genetics) feminizedzamnesia.com
- 3OG #18 Seedspacificseedbank.com
- 4OG #18 VS OG Kushcomparethestrain.ca
- 5The OG #18 (Reserva Privada) :: Cannabis Strain Infoen.seedfinder.eu
- 6OG #18 Strain - Hybrid with Sedative Effectswayofleaf.com
- 7OG #18 Weed Strain Information & Effectssativauniversity.com
- 8OG #18 Strain - Growing Tips and Medical Effectsmarijuana-guides.com
- 9OG #18 - Strain Information – Royal King Seedsroyalkingseeds.com
- 10OG #18 Strainilovegrowingmarijuana.com
- 11OG #18 - Weed Strainsleafly.com
- 12The OG #18 (Reserva Privada) :: Cannabis Strain Infoseedfinder.eu
- 13The OG 18 - Strain Information - CannaConnectioncannaconnection.com
- 14OG #18 Weed Strain Effects & Reviews | Leaflyleafly.ca
- 15OG #18 Weed Strain Effects & Reviews | Leaflyleafly.com
- 16The OG #18 Private Reserve OGaskgrowers.com
- 17The OG #18 Seeds by Reserva Privadagrowdiaries.com
- 18OG #18 Strain - Hybrid Cannabis Review, 23.0% THC ...hytiva.com
- 19OG #18nuggmd.com
19 verified sources
OG #18 is a hybrid strain primarily descended from OG Kush with various lineage reports including Afghani, Hindu Kush, and Lemon Thai genetics. Some sources indicate it originated in the 2000s.
Origin Timeline
First cultivated in 2007
Breeder
DNA Genetics, Reserva Privada
Seed Bank
Reserva Privada
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